Selenium (from Brazil nuts) boosts sexual desire and function at the hormonal level. He removed processed foods, added strength training, and started eating Brazil nuts, macadamias, and pastured eggs daily. In one study, selenium supplementation increased testosterone and improved fertility in infertile men.
As men age, testosterone levels tend to drop, leading to a myriad of health problems, from decreased libido to muscle weakness. But have you ever thought about how nuts can influence your testosterone levels? Pair these foods with a balanced diet, regular exercise, and healthy lifestyle habits for optimal results. Packed with zinc, magnesium, healthy fats, and antioxidants, they help balance hormones, reduce inflammation, and improve overall health. While they have health benefits, it’s best to balance PUFA-rich nuts with those high in monounsaturated fats, like macadamia nuts. Others, like cashews and almonds, offer healthy fats that contribute to overall hormone health.
It provides the benefits without adding too many calories. Walnuts are high in nutrients like omega-3s and antioxidants, which are linked to improved sperm quality, including motility and morphology. Eating a handful daily can boost energy and support metabolism. Their high antioxidant protects cells from damage, while magnesium and zinc aid muscle function and hormonal balance. Rich in omega-3s, they reduce inflammation and improve cardiovascular health.
One important nutrient found in peanut butter is vitamin E, an antioxidant that supports hormone health and may help maintain testosterone levels. By reducing oxidative stress and enhancing nutrient availability, Brazil nuts can naturally boost testosterone and overall reproductive health. Brazil nuts are rich in healthy fats, magnesium, and zinc—key nutrients that support testosterone synthesis and hormonal balance.
If you suspect that you have low testosterone levels, seek advice from your healthcare provider. Some studies show that high selenium intake may improve testosterone levels, sperm motility, and sperm quality. This highlights the need for more research on Brazil nuts’ effects on testosterone levels specifically. Also, it’s worth noting that most of these studies use selenium supplements rather than foods high in selenium, such as Brazil nuts. Several studies have shown that taking a selenium supplement may improve testosterone levels or aid male fertility by enhancing semen quality (5, 6, 7). While nuts, in general, are excellent for health, not all are beneficial for testosterone levels.
Both of these may stimulate the body to release more testosterone. It's also a gender-affirming treatment for people seeking more "masculine" physical characteristics, like a deeper voice and facial hair. Your ideal level of testosterone is difficult to calculate. Testosterone is the major sex hormone in men. Many over-the-counter (OTC) products make claims, but there is limited research to back them up.
You may be interested in natural testosterone boosters instead. Nevertheless, even if no group of non-training participants was included, it is of interest to mention that the reference group was a matched participant cohort that did train but did not consume walnut at all. Accordingly, it has been shown that CRP levels decreased by 45% in hypercholesterolaemic participants consuming an LA-rich diet . However, some studies demonstrated a decrease in CRP after 10 weeks of moderate resistance training in sedentary men . Otherwise, it has been demonstrated that both ALA and LA in walnut can affect reproductive processes through different mechanisms . Concerning the effect of physical training alone, the present findings agree with previous investigations reporting increased basal T in older men following CT . It has also been demonstrated that including walnut as part of a regular diet for 6 months improved plasma lipid profile .

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